RFLink alternatives

Hi all

I have an RFLink on an Arduino Mega+ESP8266, but I’m not satisfied with this.
Often I don’t get updates.
I’ve also the original RFlink with USB cable, but also in this case I get some issues.

Do you know any alternatives (excluding RFXCom) to manage 433MHz products?

Thanks

There are 2 other options I can think of, pilight and the mqttgateway both integrate with HA and both need you to be able to construct the H/W i believe.